Home / 873,010.60-1,309,904.70-399,452.20

Finding the Fourth Proportional to 873,010.60, 1,309,904.70 and 399,452.20

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Solution

The fourth proportional to 873,010.60, 1,309,904.70 and 399,452.20 is: 599,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,010.60 : 1,309,904.70 = 399,452.20 : x
  2. Step 2: Convert to fraction form
    873,010.60/1,309,904.70 = 399,452.20/x
  3. Step 3: Cross multiply
    873,010.60x = 1,309,904.70 × 399,452.20
  4. Step 4: Simplify right side
    873,010.60x = 523,244,314,205.34
  5. Step 5: Solve for x
    x = 523,244,314,205.34/873,010.60
  6. Step 6: Final answer
    x = 599,356.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.